Machine for making corrugated wood sliver.



PATENTED MAR. 28, i905 E. WOLFE. MACHINE FOR MAKING CORRUGATED WOODSLIVER.

APPI-IOLTION FILED MAR. 26, 1904.

Patented March 28, 1905.

PATENT OFFICE.

EDUARD IVOLFF, OF HABELSCHINERDT, GERMANY.

MACHINE FOR MAKING CORRUGATED WOOD SLIVER.

SPECIFICATION forming part of Letters Patent No. 785,786, dated March28, 1905. Application filed March 25, 1904. $erial No. 200,014.

To all whom it may concern.-

Be it known that I, EDUARD WOLFF, a subject of the German Emperor,residing at Habelschwerdt, in the Province of Silesia, Germany, haveinvented certain new and useful Improvements in Machinery for MakingCorrugated Wood Sliver; and I do hereby declare the following to be afull, clear, and exact description of the invention, such as will enableothers skilled in the art to which it appertains to make and use thesame.

This invention relates to a machine by means of which corrugated woodsliver can be rapidly made, and comprises corrugating and dryingcylinders ordrums, means for preventing fracture or tearing of the fiberwhen passing between the corrugating-cylinders, and means for keepingthe sliver in the corrugated form imparted thereto until the wood isthoroughly dried. The corrugated sliver thus produced retains its formpermanently.

In the accompanying drawings, Figure 1 is a sectional elevation of amachine constructed according to this invention, and Fig. 2 is an endelevation.

A drying and corrugating drum (0, formed With longitudinal grooves inits peripheral surface, is mounted between suitable standards I or endframes and rotated in the direction of the arrow by any suitable means.A corrugating-roll is engages with the grooves in the corrugating anddrying drum and serves to press the sliver into the grooves of the drum.An endless apron made of cloth or other yielding material runs over thecorrugating-roll k and the guide-rollers a, (one of which rollersviz.,n-serves to adjust the tension,) as well as over three-fourths of thecircumference of the heated cylinder a. This apron 0 is introducedbetween the cylinder k and the drying-cylinder a and passes between thecylinders a and it with the sliver that is to be pressed. Immediatelyafter leaving the cylinders is n it lies closely against thecircumference of the drum a, and thus presses the sliver into thegrooves in the drum (0. Thus with this device any distortion of thesliver during the drying process after the corrugated form has beengiven to it is entirely prevented.

By the employment of the apron the wood sliver is protected fromfracture when passing between the corrugating-rolls, the apron acting asa cushion between the sliver and the corrugating or pressing roll It, sothat the pressure is transmitted from the yielding material of the apronto the sliver. In this manner any tearing or breaking of the fiber isprevented.

What I claim, and desire to secure by Letters Patent, is-

1. In a machine for corrugating wood sliver, the combination withcorrugating cylinders or drums, of an apron arranged to pass with thesliver between the corrugating-cylinders to form a cushion between thesliver and the corrugating or pressing roll to prevent tearing orbreaking of the fiber, and means for guiding the apron so that itembraces the major portion of the periphery of the dryingdrum andretains the sliver in the grooves of the drying-drum, substantiallyasdescribed.

2. A machine for corrugating wood sliver, comprising a drying andcorrugating drum grooved longitudinally, a roll adapted to press thesliver into the grooves of the drying-cylinder to corrugate it, anendless apron arranged to travel with the sliver between the drying andpressing cylinders and toretain the sliver in the grooves of thedrying-cylinder after being acted upon by the pressingcylinder, andguide-rollers arranged to hold the apron in contact with thedrying-cylinder over a greater portion of its circumference.

In testimony whereof I have aflixed my signature in presence of twowitnesses.

EDUARD IVOLFF. l/Vitnesses:

BRUNO HORLNY, ERNST KATZ.

